Keyboard



FIG. 1 is a top plan view of a keyboard showing our new design;

FIG. 2 is a side elevational view thereof the other side is symmetrical except for the keys;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a front elevational view thereof. 

The ornamental design for the keyboard, as shown and described. 